1 // -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
2 // vim: ts=8 sw=2 smarttab
4 #include "common/debug.h"
5 #include "common/errno.h"
9 #define dout_context g_ceph_context
10 #define dout_subsys ceph_subsys_rbd
12 #define dout_prefix *_dout << "rbd::ggate::Watcher: " << this \
13 << " " << __func__ << ": "
18 Watcher::Watcher(Driver *drv, librados::IoCtx &ioctx, librbd::Image &image,
20 : m_drv(drv), m_ioctx(ioctx), m_image(image), m_size(size) {
23 void Watcher::handle_notify() {
26 librbd::image_info_t info;
28 if (m_image.stat(info, sizeof(info)) == 0) {
29 size_t new_size = info.size;
31 if (new_size != m_size) {
32 int r = m_drv->resize(new_size);
34 derr << "resize failed: " << cpp_strerror(r) << dendl;
37 r = m_image.invalidate_cache();
39 derr << "invalidate rbd cache failed: " << cpp_strerror(r) << dendl;